diff --git a/libc/include/locale.h b/libc/include/locale.h
index 4efc564..aa6b474 100644
--- a/libc/include/locale.h
+++ b/libc/include/locale.h
@@ -49,9 +49,6 @@
     LC_IDENTIFICATION = 12
 };
 
-extern char* setlocale(int, const char*);
-
-#if defined(__LP64__)
 struct lconv {
     char* decimal_point;
     char* thousands_sep;
@@ -71,7 +68,6 @@
     char  n_sep_by_space;
     char  p_sign_posn;
     char  n_sign_posn;
-    /* ISO-C99 */
     char  int_p_cs_precedes;
     char  int_p_sep_by_space;
     char  int_n_cs_precedes;
@@ -79,12 +75,9 @@
     char  int_p_sign_posn;
     char  int_n_sign_posn;
 };
-#else
-// Keep old declaration for ILP32 for compatibility
-struct lconv { };
-#endif
 
 struct lconv* localeconv(void);
+extern char* setlocale(int, const char*);
 
 __END_DECLS
 
diff --git a/libc/include/sys/localedef.h b/libc/include/sys/localedef.h
deleted file mode 100644
index b6b5eb1..0000000
--- a/libc/include/sys/localedef.h
+++ /dev/null
@@ -1,101 +0,0 @@
-/*	$OpenBSD: localedef.h,v 1.3 1996/04/21 22:31:47 deraadt Exp $	*/
-/*	$NetBSD: localedef.h,v 1.4 1996/04/09 20:55:31 cgd Exp $	*/
-
-/*
- * Copyright (c) 1994 Winning Strategies, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *      This product includes software developed by Winning Strategies, Inc.
- * 4. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef _SYS_LOCALEDEF_H_
-#define _SYS_LOCALEDEF_H_
-
-#include <sys/param.h>
-#include <sys/types.h>
-
-typedef struct
-{
-	char *yesexpr;
-	char *noexpr;
-	char *yesstr;
-	char *nostr;
-} _MessagesLocale;
-
-extern const _MessagesLocale *_CurrentMessagesLocale;
-extern const _MessagesLocale  _DefaultMessagesLocale;
-
-
-typedef struct
-{
-	char *int_curr_symbol;
-	char *currency_symbol;
-	char *mon_decimal_point;
-	char *mon_thousands_sep;
-	char *mon_grouping;
-	char *positive_sign;
-	char *negative_sign;
-	char int_frac_digits;
-	char frac_digits;
-	char p_cs_precedes;
-	char p_sep_by_space;
-	char n_cs_precedes;
-	char n_sep_by_space;
-	char p_sign_posn;
-	char n_sign_posn;
-} _MonetaryLocale;
-
-extern const _MonetaryLocale *_CurrentMonetaryLocale;
-extern const _MonetaryLocale  _DefaultMonetaryLocale;
-
-
-typedef struct
-{
-	const char *decimal_point;
-	const char *thousands_sep;
-	const char *grouping;
-} _NumericLocale;
-
-extern const _NumericLocale *_CurrentNumericLocale;
-extern const _NumericLocale  _DefaultNumericLocale;
-
-
-typedef struct {
-	const char *abday[7];
-	const char *day[7];
-	const char *abmon[12];
-	const char *mon[12];
-	const char *am_pm[2];
-	const char *d_t_fmt;
-	const char *d_fmt;
-	const char *t_fmt;
-	const char *t_fmt_ampm;
-} _TimeLocale;
-
-extern const _TimeLocale *_CurrentTimeLocale;
-extern const _TimeLocale  _DefaultTimeLocale;
-
-#endif /* !_SYS_LOCALEDEF_H_ */